Craftool� stamps are an investment that will last for years to come! In most types of carved leather designs, the background tool matts and varies the texture of the area adjoining the design. Proper use of this tool will add depth and bold relief to your design. Our book, "Tech Tips" #66056-00 by Al Stohlman, shows various uses of the different background designs available. Approx. stamp dimensions: 3/32x5/32.